BellaOnline Forums Hobbies and Crafts Crochet Help!!!

I'm using a pattern from CrochetWorld Mag that I subscribe to but the pattern of a blanket my daughter picked is Intermediate level which ive done in the past without issue but the motifs 3rd Rnd is confusing me with "behind working st" where do I put the tr stitch? There are 7 loops that take up the stitches from the previous round. I'm stumped...

I forgot to mention the pattern: RND 2 ends with 8 ch-7 lps in a circle RND 3: Sl st in each of next 3 chs of ch-7 lp, ch 4, tr in ch-7 lp behind working st, ch 7, *tr in next unworked ch-7 lp, tr in ch-7 lp behind working st, ch 2, tr in next unworked ch-7 lp, tr in ch-7 lp behind working st, ch 7*, Rep from * to * 2 more times, tr in next ch-7 lp (lp with first tr worked in end), tr in ch lp behind working st, ch 2, al st to top of beg ch 4, make sure ch is behind first tr (4 ch-7 lps, 4 ch-2 lps)

I finally got it to work. Its Bc the st weave back n forth. But thanks :)

So, was it a front and back post stitch?